Blade adjustment for safety razors of the gillette type



INVENTOR.

ATTRNEY.

Sept. 14 1926.

O.v D. ORVIS BLADE ADJUSTMENT Fon SAFETY RAzoRs 0F TEE GILLETTE TYPEFiled April 2l. 1925 QRLENCE @R ws..

Patented Sept. 14, 1926.

UNITED STATES ORLENCE D. OBVIS, 0F NEW YORK, N. Y.

BLADE ADJUSTMENT FOB SAFETY RAZORS 0F THE GILLETTE TYPE.

Application led April 21, 1925. Serial No. 24,725. j

This invention relates to improvements in safet razors and moreparticularly to a nove and improved blade adjustment for safety razorsot the Gillette type.

Under ordinary circumstances, when positioning a safety razor bladebetween the head and guard, the angularity of the blade will depend onhow tight or how much pressure is exerted on the center of said lbladewhen the head is "threaded into the handle. When the blade is firstpositioned on the ard, it is nnormall straight but due to its resiliencyor flexibility, the blade lconforms to the curvature of the guard as thehandle is threaded in position. It becomes then a matter of guess workas to how much tension should be exertedv on the blade in positioningvit between the head and the guard so that the angularity of theedge ofthe blade will best suit the individual user of the razor. i

The object of -my invention therefore is to provide a positive meanswhereby the angularity of the blade may be set or adjusted so that whennew blades are substituted'foran old one, the blade adjusting elementwill not be disturbed, thus permitting the individual to obtain theservice suitable to his particular condition.

In order to more fully understand and appreciate my invention, reference`is had to the accompanying drawing ,showing a preferred embodiment ofmy invention, .wherein Fig. 1 is a view of the safety razor whenassembled, being partially in section to show .the kadj ustment screw.

Fig. 2 is an enlarged sectional view showing the relation of the headand guard to the adjustment screw.

Fig. 3 ,is a vertical sectional view showing the assembly of theadjustment screw in the hollow, threaded stem of the razor.

Referring now to the drawings wherein likeV reference charactersdesignate corresponding parts throughout the several views, 5 desi atesthe head and 6 the threaded screw ormed therewith which is adapted topass through a central aperture in a razorv blade-guard 7. The blade 8is positioned between the guard and the head and becomes flexed when theinternally threaded stem 9` is screwed into position against the lowerface of the,v guard.

. -Undr ordinary conditions, as the head is urged toward the guard, theblade is iiexed 'therefrom with the guard.

until it conforms to the curvature of the guard. At an intermediateposition, however, if thethrea-ded portion of the head is not screwedyentirely into the stem, the edge of the blade will be spaced somewhatfrom the guard, and thus a different edect and result is produced whenshaving due to the angularity of the razor blade edge presented to theshaving surface. After a very shortl time, the individual ascertains theproper adjustment of the blade when positioned on the guard and when itis desired to maintainl this adjustment, the adjusting screw 10,threaded at its upper end 11, is threaded into the stem 9 until theendof the adjusting screw engages the end of the threaded portion 6 of thehead 5. en

so positioned, it will be seen that the thread- ,7' 5 be detached edportion 6 of the head cannot advance further into the stem but may Thelower end 12 of the adjusting screw is preferably graduated so that theaduations may 'coincide with thelower en of the hollow stem. Thus byrotating and threading the threaded screw into the internally threadedstem to different positions, the individual may regulate the extent towhich the head 5 flexes or bends the blade to produce the desiredangularity of the razor blade. A. handle 14 is telescopically positionedin the lower end of hollow stem, concealing the threaded screw 10. Bysimply removing the handle 14, the lower end of the threaded screw maybe rotated in either direction for the purposes and objects above setforth.

Having shown and described my invention, what I now claimYV as new anddesire to secure by Letters Patent of the United States is 1. A safetyrazor comprising a head, a shank thereon in threaded engagement with a.handle, and a threaded and graduated rod also in direct engagement withthe said ha-ne dle and adaptedto meetand bind against the tip of theaforesaid shank, and a guard member adapted to rest between the saidhandle and an inserted blade.

- the said handle and to receive within itself a portion of the saidgraduatedl r0d,l'and a guard member and blade secured between the saidhead and the handle member, substantially as shown and "described, l

3. A safety razor comprising a head, a;

guard, an internally threaded stem, said` head having a screw portionadapted to pass through -the guard into the threaded stem whereby arazor blade may be flexed against the guard, an adjusting screw with-April, 1925.

in the stem, one end of said adjusting screw adapted to limit themovement of the thread- `ed portion of the head, ythe opposite end ofthe adjusting screw being graduated and 15 adapted to coincide with thelower end of the stem and :a telescopic handle for said stem.

In testimony whereof, I have si ned my name to this specification thisQn oRLENoE D. oRvIs.

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